8. Delays and Links

Delays represent the time required for a packet to
traverse a link.
A special form of this object (``dynamic link'')
also captures the possibility of a link failure.
The amount of time required for a packet to traverse a link
is defined to be where is the packet size
(as recorded in its IP header), is the speed of the link
in bits/sec, and is the link delay in seconds.
The implementation of link delays is closely associated with
the blocking procedures described for Queues in
Section7.1.1.